Phase of life cycle and event of sexual reproduction till fertilisation events

Describe the major events in sexual reproduction.

Events of sexual reproduction may be categorised into:-

All are post-fertilisation events, except

The most vital event of sexual reproduction is perhaps the fusion of gametes in humans. The process results in formation of

The events in sexual reproduction are (i) pre-fertilisation (ii)fertilisation (iii) post-fertilisation The sequential order of their occurrence is

Which of the following is the correct sequence of events of sexual reproduction in a flower?